:root{
  --bg:#f5f7fb;
  --panel:#ffffff;
  --text:#1f2937;
  --muted:#6b7280;
  --border:#e5e7eb;
  --shadow:0 10px 30px rgba(17,24,39,.08);
  --r:14px;

  --primary:#4f46e5;
  --primary-2:#4338ca;

  --green:#16a34a;
  --green-2:#15803d;

  --blue:#2563eb;
  --blue-2:#1d4ed8;

  --purple:#7c3aed;
  --purple-2:#6d28d9;

  --danger:#dc2626;

  --chip:#f3f4f6;
  --chip-text:#374151;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Apple SD Gothic Neo, "Noto Sans KR", sans-serif;
  color:var(--text);
  background:var(--bg);
}

.app{
  max-width:1200px;
  margin:0 auto;
  padding:18px;
}

.header{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:12px;
  margin-bottom:18px;
  flex-wrap:wrap;
}

.title{
  margin:0;
  font-size:28px;
  letter-spacing:-.4px;
}
.subtitle{
  margin:6px 0 0;
  color:var(--muted);
  font-size:13px;
}
.save-status{
  margin:6px 0 0;
  color:var(--green);
  font-size:12px;
  min-height:16px;
}

.header-actions{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}

.grid{
  display:grid;
  grid-template-columns: 1fr;
  gap:16px;
}
@media (min-width: 1024px){
  .grid{ grid-template-columns: 380px 1fr; }
}

.panel{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--r);
  box-shadow:var(--shadow);
  padding:16px;
}

.panel-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:12px;
}
.panel-title{
  margin:0;
  font-size:16px;
}

.search{
  position:relative;
  margin-bottom:12px;
}
.search input{
  width:100%;
  padding:10px 12px 10px 38px;
  border:1px solid var(--border);
  border-radius:10px;
  outline:none;
  font-size:13px;
  background:#fff;
}
.search input:focus{
  border-color:rgba(79,70,229,.5);
  box-shadow:0 0 0 3px rgba(79,70,229,.12);
}
.search-icon{
  position:absolute;
  left:12px;
  top:10px;
  width:16px;
  height:16px;
  color:#9ca3af;
}

.filters{
  display:grid;
  gap:8px;
  margin-bottom:12px;
}
.filters select{
  width:100%;
  padding:10px 12px;
  border:1px solid var(--border);
  border-radius:10px;
  outline:none;
  font-size:13px;
  background:#fff;
}

.add-form{
  background:#f7f7ff;
  border:1px solid rgba(79,70,229,.18);
  border-radius:12px;
  padding:12px;
  display:grid;
  gap:8px;
  margin-bottom:12px;
}
.add-form input,
.add-form select{
  width:100%;
  padding:10px 12px;
  border:1px solid var(--border);
  border-radius:10px;
  font-size:13px;
  outline:none;
  background:#fff;
}

.file-list{
  max-height:420px;
  overflow:auto;
  display:grid;
  gap:10px;
  padding-right:4px;
}

.file-item{
  border:1px solid var(--border);
  background:#fbfbfc;
  border-radius:12px;
  padding:12px;
  cursor:pointer;
  transition:background .15s, border-color .15s;
}
.file-item:hover{ background:#f6f7fb; }
.file-item.selected{
  border-color:rgba(79,70,229,.65);
  background:#eef2ff;
}

.file-top{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:10px;
}
.file-main{
  display:flex;
  gap:10px;
  min-width:0;
  align-items:center;
}
.file-name{
  margin:0;
  font-size:13px;
  font-weight:650;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.file-type{
  margin:2px 0 0;
  color:var(--muted);
  font-size:12px;
}
.file-emoji{
  font-size:18px;
  line-height:1;
}
.file-star{
  width:14px;height:14px;
  color:#f59e0b;
  fill:#f59e0b;
  flex:0 0 auto;
}

.file-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:10px;
  gap:10px;
}

.chip{
  font-size:12px;
  padding:4px 8px;
  border-radius:999px;
  background:var(--chip);
  color:var(--chip-text);
  white-space:nowrap;
}
.chip.green{ background:#eaf7ee; color:#0f6a2e; }
.chip.blue{ background:#e9f2ff; color:#1e4fb8; }
.chip.gray{ background:#f3f4f6; color:#374151; }
.chip.yellow{ background:#fff7e6; color:#8a5a00; }
.chip.red{ background:#ffecec; color:#9f1c1c; }

.muted{ color:var(--muted); font-size:12px; }

.detail{ min-height:560px; }

.empty{
  height:100%;
  min-height:520px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  color:#9ca3af;
  gap:10px;
}
.empty-icon{ width:56px;height:56px; }

.detail-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom:14px;
  flex-wrap:wrap;
}
.detail-title{
  display:flex;
  align-items:center;
  gap:10px;
}
.detail-title h2{
  margin:0;
  font-size:20px;
  letter-spacing:-.2px;
}
.star-btn{
  border:none;
  background:transparent;
  cursor:pointer;
  padding:6px;
  border-radius:10px;
}
.star-btn:hover{ background:#f3f4f6; }
.star-btn i{ width:18px;height:18px; color:#f59e0b; }
.star-btn.on i{ fill:#f59e0b; }

.meta-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:10px;
  margin-bottom:12px;
}
.meta{
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--muted);
  font-size:13px;
}
.meta i{ width:16px;height:16px; }

.badge{
  display:inline-flex;
  align-items:center;
  padding:8px 10px;
  border-radius:12px;
  background:#f6f0ff;
  color:#5b21b6;
  font-size:13px;
  margin-bottom:14px;
}

.block{ margin-bottom:14px; }
.label{
  display:block;
  font-size:13px;
  font-weight:650;
  margin-bottom:8px;
  color:#374151;
}

.status-row{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}

.block-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom:8px;
}

.memo-view{
  margin:0;
  padding:10px 12px;
  border:1px solid var(--border);
  border-radius:12px;
  background:#fafafa;
  min-height:42px;
  color:#4b5563;
  font-size:13px;
  white-space:pre-wrap;
}
.memo-edit{
  width:100%;
  padding:10px 12px;
  border:1px solid var(--border);
  border-radius:12px;
  outline:none;
  font-size:13px;
  resize:vertical;
}
.memo-edit:focus{
  border-color:rgba(79,70,229,.5);
  box-shadow:0 0 0 3px rgba(79,70,229,.12);
}

.code{
  width:100%;
  height:260px;
  padding:12px;
  border:1px solid var(--border);
  border-radius:12px;
  outline:none;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size:12px;
  background:#fafafa;
  resize:vertical;
}
.code:focus{
  border-color:rgba(79,70,229,.5);
  box-shadow:0 0 0 3px rgba(79,70,229,.12);
}

.btn{
  border:none;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 12px;
  border-radius:12px;
  font-size:13px;
  font-weight:650;
  color:#fff;
  user-select:none;
}
.btn i{ width:16px;height:16px; }
.btn-primary{ background:var(--primary); }
.btn-primary:hover{ background:var(--primary-2); }

.btn-green{ background:var(--green); }
.btn-green:hover{ background:var(--green-2); }

.btn-blue{ background:var(--blue); }
.btn-blue:hover{ background:var(--blue-2); }

.btn-purple{ background:var(--purple); }
.btn-purple:hover{ background:var(--purple-2); }

.btn-gray{
  background:#e5e7eb;
  color:#111827;
}
.btn-gray:hover{ background:#d1d5db; }

.btn-light{
  background:#f3f4f6;
  color:#111827;
}
.btn-light:hover{ background:#e5e7eb; }

.w-full{ width:100%; }

.icon-btn{
  border:1px solid var(--border);
  background:#fff;
  cursor:pointer;
  padding:8px;
  border-radius:12px;
}
.icon-btn:hover{ background:#f3f4f6; }
.icon-btn i{ width:16px;height:16px; color:#4b5563; }
.icon-btn.ok i{ color:var(--green); }
.icon-btn.danger i{ color:var(--danger); }

.file-label{ position:relative; overflow:hidden; }

.delete-btn{
  border:none;
  background:transparent;
  cursor:pointer;
  padding:6px;
  border-radius:10px;
  color:var(--danger);
}
.delete-btn:hover{ background:#fee2e2; }
.delete-btn i{ width:14px;height:14px; }

.status-btn{
  border:1px solid var(--border);
  background:#f3f4f6;
  color:#374151;
  cursor:pointer;
  padding:8px 10px;
  border-radius:12px;
  font-size:13px;
}
.status-btn:hover{ background:#e5e7eb; }
.status-btn.active{ border-color:transparent; }

.hidden{ display:none !important; }

.modal{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.45);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:18px;
  z-index:50;
}
.modal-card{
  width:100%;
  max-width:420px;
  background:#fff;
  border-radius:16px;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  padding:18px;
}
.modal-title{ margin:0 0 8px; font-size:18px; }
.modal-desc{ margin:0 0 14px; color:var(--muted); font-size:13px; }
.modal-input{
  width:100%;
  padding:10px;
  border:1px solid var(--border);
  border-radius:12px;
  margin-bottom:12px;
}

.stats{
  margin-top:16px;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:10px;
}
@media (min-width: 768px){
  .stats{ grid-template-columns: repeat(5, 1fr); }
}
.stat{
  background:#fff;
  border:1px solid var(--border);
  border-radius:14px;
  padding:12px;
  box-shadow:0 8px 24px rgba(17,24,39,.06);
}
.stat-label{
  margin:0 0 6px;
  color:var(--muted);
  font-size:12px;
}
.stat-value{
  margin:0;
  font-size:22px;
  font-weight:750;
  letter-spacing:-.3px;
}